Fire extinguisher and alarm.



No. ssa. APATENTE) APR. 7,1908( G. M. BOWMAN. PIRE BXTINGUISHBR ANDALARM.

.APPLIGA'IION FILED JUNEl?, 1907.

Suva/Mofa E MEUWMAN THE :vonnis PETERS co, wAsHlNnraN. n. c,

@How ms UNTTED sTATEs PATENT oEEroE.

CHARLES M. BOWMAN, OF* LEBANON, PENNSYLVANIA.

FIRE EXTINGUISHER AND ALARM.

To all whom it may concern:

Be it known that I, CHARLES M. BowMAN, a citizen of the United States,residing at Lebanon, in the county of Lebanon and State of Pennsylvania,have invented certain new and useful Improvements in a Fire Extinguisherand Alarm and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to improvements in fire extinguishers and alarms.

The object of the invention is to provide a combined fire extinguisherand alarm, which will be simple and inexpensive in construction, safeand reliable in operation, and which may be used as an automatic or handextinguisher.

With this object in view, the invention consists ofcertain novelfeatures of construction, combination and arrangement of parts as willbe more fully described and particularly pointed out in the appendedclaims.

In the accompanying drawings, Figure l is a perspective view of a lireextinguisher constructed in accordance with the invention; Fig. 2 is acentral vertical sectional view; and Fig. 3 is a horizontal sectionalview of the same.

Referring more particularly to the drawings, 1 denotes the box or casingof the extinguisher, which may be of any desired shape and constructedof any suitable material, the same being here shown and is preferablyconstructed in a rectangular, oblong form,`and is formed of pasteboardor other light material, which may be readily torn or burst open.

The upper end of the box or casing l is closed by a suitable cap orcover piece, 2, which may be readily torn or removed therefrom. In orderto facilitate the removal of the cap or cover piece 2 I provide a stripof malleable metal, 3, which is arranged beneath lthe cap or cover piecein such manner that its opposite ends will project beyond the edges ofthe cover piece, said ends being folded downwardly along the sides ofthe boX in an out-of-the-way position when not in use.

. The box or casing l is adapted to be filled with a suitableextinguishing powder 4, which, when distributed onto the lire, causesthe formation of carbonic acid gas, which Patented April 7', 1908.

Serial No. 379,443.

quickly extinguishes the fire. Arranged in the owder in the center ofthe box and extenc ing throughout the entire length of theI besufficient to burst the box or casing l and l to widely distribute thepowder in all directions. The extension of the cartridge from end to endof the casing provides a brace or prop therefor and prevents collapse ofthe casing under external pressure, and it also serves to cause theradial scattering there- :from of the powder on the explosion of saidcartridge.

In using the device as an automatic extinguisher, the same is located atsuch places where fires are likely to occur, so that when the fuse ofthe cracker is ignited, and the latter explodes, the powder will beautomatically distributed into the fire as hereinbefore described.

In using the device as a hand extinguisher, one of the ends of the metalstrip 3 is grasped and the cover thereby torn off from the upper end ofthe box or casing, after which the powder may be thrown from the openend of the box or emptied upon the hand and thereby scattered into thefire. device isused as a hand extinguisher, the cracker will not beexploded, and consequently is useless when the device is thus em loyed.

y providing an explosive cracker such as herein shown and described forbursting the box and distributing the powder, the noise occasioned bythe exploding of the cracker will sound the alarm which will indicate topersons within hearing that the building is on Having thus fullydescribed my invention, lwhat I claim as new and desire to secure byLetters Patent, is

A fire extinguisher comprising a closed frangible box or casing, fireextinguishing powder filling said box or casing, an explosive crackerembedded in said extinguishing powder and extending from end to end ofthe casing, whereby the walls of said box are pre- When the 2 seater-seyvented from collapsing under external presmy hand in presence of tWosubscribing Witsure and the powder scattered radially and nesses.

uniformly throughout the length thereof on the explosion of the cracker,said explosive CHARLES M BOWMAN' 5 Cracker having a fuse projectingthrough one Witnesses:

end of the box. C. G. RAUCH,

In testimony whereof I have hereunto set THOS. J. SHAAK.

